Correlation Between Postprandial Hypotension and Post-induction Hypotension in the Elderly.

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age65+
SponsorPeking Union Medical College Hospital

About this trial

Postprandial hypotension (PPH) and post-induction hypotension (PIH) are very common in the elderly population and are associated with a variety of poor outcomes.The purpose of this study is to investigate the correlation between PPH and perioperative adverse events such as PIH in the elderly.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Elderly patients (≥ 65 years old);

Patients with American Society of Anesthesiologists(ASA) grade I-III;

Patients scheduled to undergo elective non-cardiac surgery under general anesthesia, with an anticipated surgical duration of over 1 hour;

Patients with intra-tracheal intubation following intravenous general ;anesthesia induction and maintenance;

Disqualifiers

Patients with vascular diseases such as aortic aneurysm, aortic dissection, symptomatic atherosclerotic obliterans, Buerger's disease, and Raynaud's syndrome

Patients with secondary hypertension, including renal hypertension and endocrine hypertension.

Patients with chronic kidney disease requiring dietary restrictions or dialysis.

Patients with Parkinson's disease or other conditions causing tremors.

Trial population

Elderly patients scheduled for elective non-cardiac surgery under general anesthesia in Peking Union Medical College Hospital

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

Not listed

Trial groups

120 Participants
are grouped into 2 trial groups
Group A: Postprandial hypotension group
Group B: No postprandial hypotension group

Trial outcomes

Primary outcomes

1

Post-induction hypotension

which is defined as systolic blood pressure (SBP) \<90 mm Hg or a decrease of more than 30% from baseline blood pressure, mean arterial pressure(MAP)\<65 mm Hg or a decrease of more than 30% from baseline blood pressure within 20 minutes after induction or before incision.

Time frame
Within 20 minutes after induction or before incision.

Secondary outcomes

1

Postoperative complications

We will use the Clavien-Dindo system to grade postoperative complications.

Time frame
Within 30 days after surgery
2

early intraoperative hypotension (eIOH)

which is defined asa systolic blood pressure \<90 mmHg, mean arterial pressure \<65 mmHg, or a decrease of more than 30% from baseline

Time frame
within the first 30 minutes after the start of surgery
3

mortality within 30 days after surgery

we will assess the mortality by postoperative follow-up

Time frame
within 30 days after surgery
4

12-item World Health Organization Disability Assessment Schedule 2.0 score (12-item WHODAS 2.0 score)

The World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) will be employed to evaluate postoperative functional health status. The 12-item version yields a total score ranging from 12 to 60, with higher scores indicating greater disability and poorer health outcomes.

Time frame
within 180 days after surgery

Other outcomes

Sponsors and contacts

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